Record-Breaking Gravitational Wave Detection Suggests These Black Holes Merged Before - IFLScience
- Record-Breaking Gravitational Wave Detection Suggests These Black Holes Merged Before IFLScience
- Scientists hear 2 newborn black holes 'crying' through ripples in spacetime — and one had a birth unlike anything seen before Space
- Gravitational wave events hint at 'second-generation' black holes Phys.org
- When Black Holes Eat Their Own Universe Today
- Colliding black holes might have formed from earlier cosmic smashups Caltech